package com.ayf.payment.game.api.utils;


import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;

/**
 * @Description: 加密工具类
 * @Author: zh-liang
 * @Date : 2020-03-25 20:07
 */
public class EncryptUtils {

    /**
     * 将字符串进行sha1加密
     *
     * @param str
     * @return String
     */
    public static String Sha1(String str) {
        char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9','a', 'b', 'c', 'd', 'e', 'f'};
        try {
            MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
            mdTemp.update(str.getBytes(StandardCharsets.UTF_8));
            byte[] md = mdTemp.digest();
            int j = md.length;
            char[] buf = new char[j * 2];
            int k = 0;
            for (byte byte0 : md) {
                buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
                buf[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(buf);
        } catch (Exception e) {
            return null;
        }
    }
}